Fun fact: during early development the gonads of the human fetus remain undifferentiated; that is, all fetal genitalia are the same and are phenotypically female.

- So, if biological sex can't be changed,
- And if life starts at conception,
- Then all men are trans.

Sorry, Republican men. You made the rules.

Men lose Y chromosomes as they age. It may be harming their hearts

Study in mice is first to directly test health effects of losing male chromosome

@mlbellar @LadyDragonfly

So female is the alpha and omega of human development and temporarily developing into a male is just a 49% aberration? 😏 (for procreation purposes mayhaps?)

@brainwreck @mlbellar @LadyDragonfly
Yep, that sounds about right. Smarter, more humane, nurturing, generous, tender... Be like women. Oh, and just bask in the glow of the fact that they allow us to share the Earth with them.
@wellingtonrock @mlbellar @LadyDragonfly We're talking chromosomes and gametes here, society's gender roles have nothing to do with it.

@brainwreck @wellingtonrock @mlbellar

If chromosomes and gametes have the ultimate say in determining ones gender,
Then all old men are women.

Sorry, Republicans, you made the rules again.

https://www.science.org/content/article/men-lose-y-chromosomes-they-age-it-may-be-harming-their-hearts

Men lose Y chromosomes as they age. It may be harming their hearts

Study in mice is first to directly test health effects of losing male chromosome

@LadyDragonfly
I don't think it is the same.
Isn't female XX and Male XY?
And if part of Y lost more it doesn't make XX it makes it XI